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    DOUBLE-ENDED INVERTER SYSTEM WITH ISOLATED NEUTRAL TOPOLOGY
    14.
    发明申请
    DOUBLE-ENDED INVERTER SYSTEM WITH ISOLATED NEUTRAL TOPOLOGY 有权
    具有孤立中性拓扑学的双端逆变器系统

    公开(公告)号：US20090032316A1

    公开(公告)日：2009-02-05

    申请号：US12106875

    申请日：2008-04-21

    申请人： Sibaprasad Chakrabarti ,  Gregory S. Smith ,  James M. Nagashima ,  Brian A. Welchko ,  Milun Perisic ,  George John

    发明人： Sibaprasad Chakrabarti ,  Gregory S. Smith ,  James M. Nagashima ,  Brian A. Welchko ,  Milun Perisic ,  George John

    IPC分类号： B60K1/00

    CPC分类号： B60K11/02 ,  B60L11/1861 ,  B60L15/02 ,  Y02T10/645 ,  Y02T10/7011 ,  Y02T10/7044 ,  Y02T10/705

    摘要： Systems and methods are provided for an inverter system for use in a vehicle having a first energy source and a second energy source. The system comprises a motor having a first set of windings and a second set of windings. The first set of windings is electrically isolated from the second set of windings. The system further comprises a first inverter coupled to the first energy source and adapted to drive the motor, wherein the first set of windings are coupled to the first inverter. The system also comprises a second inverter coupled to the second energy source and adapted to drive the motor, wherein the second set of windings are coupled to the second inverter. A controller is coupled to the first inverter and the second inverter.

    摘要翻译： 提供了一种用于具有第一能量源和第二能量源的车辆中的逆变器系统的系统和方法。 该系统包括具有第一组绕组和第二组绕组的马达。 第一组绕组与第二组绕组电隔离。 该系统还包括耦合到第一能量源并适于驱动电动机的第一逆变器，其中第一组绕组耦合到第一逆变器。 该系统还包括耦合到第二能量源并适于驱动电动机的第二逆变器，其中第二组绕组耦合到第二逆变器。 控制器耦合到第一反相器和第二反相器。

    Three phase inverter with improved loss distribution
    15.
    发明授权
    Three phase inverter with improved loss distribution 有权
    三相逆变器具有改善的损耗分布

    公开(公告)号：US07616466B2

    公开(公告)日：2009-11-10

    申请号：US11853873

    申请日：2007-09-12

    申请人： Sibaprasad Chakrabarti ,  Silva Hiti ,  George John ,  Gregory S. Smith ,  Milun Perisic ,  Gholamreza Esmaili

    发明人： Sibaprasad Chakrabarti ,  Silva Hiti ,  George John ,  Gregory S. Smith ,  Milun Perisic ,  Gholamreza Esmaili

    IPC分类号： H02M7/5387 ,  H02P27/04

    CPC分类号： H02M7/5395

    摘要： An inverter circuit couples a DC voltage source having a primary side and a reference side to an electric motor or other AC machine having multiple electrical phases. An inverter circuit includes switches, diodes and a controller. For each of the electrical phases, a first switch couples the electrical phase to the primary side of the DC voltage source and a second switch couples the electrical phase with the reference side of the DC voltage source. For each of the first and second switches, an associated anti-parallel diode is configured to provide an electrical path when the switch associated with the diode is inactive. The controller is coupled to the switching inputs of each of the first and second switches and is configured to provide a control signal thereto, wherein the control signal provided to each switch comprises, in a low frequency mode, a first portion and a second portion, wherein the first portion comprises a first pulse width modulation scheme and the second portion comprises a second pulse width modulation scheme different from the first modulation scheme.

    摘要翻译： 逆变器电路将具有初级侧和参考侧的DC电压源耦合到具有多个电相的电动机或其它AC电机。 逆变器电路包括开关，二极管和控制器。 对于每个电相，第一开关将电相耦合到DC电压源的初级侧，而第二开关将电相与DC电压源的参考侧耦合。 对于第一和第二开关中的每一个，相关联的反并联二极管被配置为当与二极管相关联的开关不活动时提供电路径。 控制器耦合到第一和第二开关中的每一个的开关输入，并且被配置为向其提供控制信号，其中提供给每个开关的控制信号在低频模式下包括第一部分和第二部分， 其中所述第一部分包括第一脉冲宽度调制方案，并且所述第二部分包括不同于所述第一调制方案的第二脉冲宽度调制方案。

    THREE PHASE INVERTER WITH IMPROVED LOSS DISTRIBUTION
    16.
    发明申请
    THREE PHASE INVERTER WITH IMPROVED LOSS DISTRIBUTION 有权
    具有改进的丢失分配的三相逆变器

    公开(公告)号：US20090067203A1

    公开(公告)日：2009-03-12

    申请号：US11853873

    申请日：2007-09-12

    申请人： Sibaprasad Chakrabarti ,  Silva Hiti ,  George John ,  Gregory S. Smith ,  Milun Perisic ,  Gholamreza Esmaili

    发明人： Sibaprasad Chakrabarti ,  Silva Hiti ,  George John ,  Gregory S. Smith ,  Milun Perisic ,  Gholamreza Esmaili

    IPC分类号： H02M7/537 ,  H02M7/44 ,  H02P23/00

    CPC分类号： H02M7/5395

    摘要： An inverter circuit couples a DC voltage source having a primary side and a reference side to an electric motor or other AC machine having multiple electrical phases. An inverter circuit includes switches, diodes and a controller. For each of the electrical phases, a first switch couples the electrical phase to the primary side of the DC voltage source and a second switch couples the electrical phase with the reference side of the DC voltage source. For each of the first and second switches, an associated anti-parallel diode is configured to provide an electrical path when the switch associated with the diode is inactive. The controller is coupled to the switching inputs of each of the first and second switches and is configured to provide a control signal thereto, wherein the control signal provided to each switch comprises, in a low frequency mode, a first portion and a second portion, wherein the first portion comprises a first pulse width modulation scheme and the second portion comprises a second pulse width modulation scheme different from the first modulation scheme.

    摘要翻译： 逆变器电路将具有初级侧和参考侧的DC电压源耦合到具有多个电相的电动机或其它AC电机。 逆变器电路包括开关，二极管和控制器。 对于每个电相，第一开关将电相耦合到DC电压源的初级侧，而第二开关将电相与DC电压源的参考侧耦合。 对于第一和第二开关中的每一个，相关联的反并联二极管被配置为当与二极管相关联的开关不活动时提供电路径。 控制器耦合到第一和第二开关中的每一个的开关输入，并且被配置为向其提供控制信号，其中提供给每个开关的控制信号在低频模式下包括第一部分和第二部分， 其中所述第一部分包括第一脉冲宽度调制方案，并且所述第二部分包括不同于所述第一调制方案的第二脉冲宽度调制方案。

    Method and system for operating an electric motor coupled to multiple power supplies
    17.
    发明授权
    Method and system for operating an electric motor coupled to multiple power supplies 有权
    用于操作耦合到多个电源的电动马达的方法和系统

    公开(公告)号：US07800331B2

    公开(公告)日：2010-09-21

    申请号：US11945368

    申请日：2007-11-27

    申请人： Sibaprasad Chakrabarti ,  Brian A. Welchko ,  Silva Hiti

    发明人： Sibaprasad Chakrabarti ,  Brian A. Welchko ,  Silva Hiti

    IPC分类号： H02P1/00

    CPC分类号： H02P27/08 ,  H02P2209/03 ,  Y02T10/7258

    摘要： Methods and systems are provided for operating an electric motor having at least one winding coupled to first and second power supplies. A torque command for the electric motor is received. A present power reserve for the first and second power supplies is determined based at least in part on the torque command. An operating voltage for the second power supply is determined based on the present power reserve. The operating voltage for the second power supply is applied to the at least one winding. The application of the operating voltage allowing the present power reserve to flow between the first and second power supplies and the motor.

    摘要翻译： 提供了用于操作具有耦合到第一和第二电源的至少一个绕组的电动机的方法和系统。 接收到电动机的转矩指令。 至少部分地基于转矩指令来确定用于第一和第二电源的当前功率储备。 基于当前动力储备来确定第二电源的工作电压。 第二电源的工作电压被施加到至少一个绕组。 施加允许当前功率储备在第一和第二电源和电动机之间流动的工作电压。

    Torque production in an electric motor in response to current sensor error
    18.
    发明授权
    Torque production in an electric motor in response to current sensor error 有权
    响应于电流传感器误差，电动机的扭矩产生

    公开(公告)号：US08174224B2

    公开(公告)日：2012-05-08

    申请号：US12470803

    申请日：2009-05-22

    申请人： Sibaprasad Chakrabarti ,  Mengwei Campbell

    发明人： Sibaprasad Chakrabarti ,  Mengwei Campbell

    IPC分类号： H02P7/00

    CPC分类号： H02P21/09 ,  H02P21/00 ,  H02P29/032 ,  Y02T10/7258

    摘要： Methods and systems are provided for producing a commanded torque in an electric motor in a vehicle. A method comprises obtaining a torque command, obtaining a speed of the electric motor, and operating the inverter based at least in part on a voltage command that corresponds to minimal current through the electric motor for producing the commanded torque at the instantaneous speed of the electric motor.

    摘要翻译： 提供了用于在车辆中的电动机中产生指令扭矩的方法和系统。 一种方法包括获得扭矩指令，获得电动机的速度，以及至少部分地基于对应于通过电动机的最小电流的电压指令来操作逆变器，以产生以电动机的瞬时速度产生指令转矩 发动机。

    ELECTRIC MOTOR SYSTEMS
    19.
    发明申请
    ELECTRIC MOTOR SYSTEMS 有权
    电动马达系统

    公开(公告)号：US20090026895A1

    公开(公告)日：2009-01-29

    申请号：US11829275

    申请日：2007-07-27

    申请人： Sibaprasad Chakrabarti ,  Silva Hiti

    发明人： Sibaprasad Chakrabarti ,  Silva Hiti

    IPC分类号： H02K3/28 ,  H02K11/00

    CPC分类号： H02K3/28 ,  H02K11/33 ,  Y02T10/7258

    摘要： Electric motor systems are provided for use in vehicles. In an embodiment, by way of example only, the system includes a first inverter, a second inverter, and a motor electrically coupled to the first and the second inverters. The motor includes a stator including a plurality of slots formed therein and a plurality of windings. The plurality of windings is disposed at least partially in the slots, and each winding includes a first coil and a second coil. The first coil has a first number of turns, and the second coil has a second number of turns that is unequal to the first number of turns. The first coil of each winding is electrically coupled to the first inverter, and the second coil of each winding is electrically coupled to the second inverter.

    摘要翻译： 提供电动机系统用于车辆。 在一个实施例中，仅作为示例，该系统包括电耦合到第一和第二逆变器的第一逆变器，第二逆变器和电动机。 电动机包括定子，其包括形成在其中的多个槽和多个绕组。 多个绕组至少部分地设置在槽中，并且每个绕组包括第一线圈和第二线圈。 第一线圈具有第一圈数，并且第二线圈具有不等于第一圈数的第二圈数。 每个绕组的第一线圈电耦合到第一反相器，并且每个绕组的第二线圈电耦合到第二反相器。

    Methods and systems for detecting current sensor error
    20.
    发明授权
    Methods and systems for detecting current sensor error 有权
    检测电流传感器误差的方法和系统

    公开(公告)号：US08138704B2

    公开(公告)日：2012-03-20

    申请号：US12470777

    申请日：2009-05-22

    申请人： Sibaprasad Chakrabarti ,  Wei D. Wang

    发明人： Sibaprasad Chakrabarti ,  Wei D. Wang

    IPC分类号： H02P6/12 ,  H02P7/00

    CPC分类号： B60L15/20 ,  B60L3/0038 ,  B60L3/0061 ,  B60L3/0092 ,  B60L11/1803 ,  B60L15/025 ,  G01R19/0092 ,  G01R31/343 ,  G01R35/00 ,  H02M2001/0009 ,  H02P21/00 ,  H02P29/0241 ,  Y02T10/643 ,  Y02T10/7005 ,  Y02T10/72 ,  Y02T10/7275

    摘要： Methods and systems are provided for controlling an electric motor in a vehicle. A method comprises measuring current associated with a first phase of the electric motor using a first current sensor resulting in a measured first phase current and measuring current associated with a second phase of the electric motor using a second current sensor resulting in a measured second phase current. The method further comprises determining a target value for the measured second phase current based on a value corresponding to a peak current for the first phase and identifying a current sensor error based on a difference between the measured second phase current and the target value.

    摘要翻译： 提供了用于控制车辆中的电动机的方法和系统。 一种方法包括使用第一电流传感器测量与电动机的第一相相关的电流，所述第一电流传感器产生测量的第一相电流，并且使用第二电流传感器测量与电动机的第二相相关的电流，得到测量的第二相电流 。 该方法还包括基于与第一相的峰值电流相对应的值来确定所测量的第二相电流的目标值，并且基于所测量的第二相电流和目标值之间的差来识别电流传感器误差。